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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Tailoring Efficient Materials for NPK All-in-One Granular Fertilization

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Giroto, Amanda S. [1] ; do Valle, Stella F. [2, 1] ; Guimaraes, Gelton G. F. [3] ; Molina, Arthur [2] ; Reis, Heitor P. G. [4] ; Fernandes, Dirceu M. [4] ; Bernardi, Alberto C. C. [5] ; Mattoso, Luiz H. C. [1] ; Ribeiro, Caue [1]
Total Authors: 9
[1] Embrapa Instrumentat, BR-13560206 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP - Brazil
[3] Agr Res & Rural Extens Co Santa Catarina, BR-88318112 Chapeco, SC - Brazil
[4] UNESP Botucatu Av Univ, BR-18610034 Botucatu, SP - Brazil
[5] Embrapa Pecuaria Sudeste, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Industrial & Engineering Chemistry Research; v. 59, n. 41, p. 18387-18395, OCT 14 2020.
Web of Science Citations: 0

Food security is one of the biggest challenges for the next few decades, especially with the accelerated population growth rates. Therefore, achieving a better nutrient use efficiency is crucial to enhance crop yields and productivity, which depend directly on how macronutrients are supplied. It is notably complex because fertilizers are often applied as granules instead of more soluble powdered forms. Here, we propose a new model for an all-in-one NPK fertilizer production, which allows quickly adjustable compositions in multi-nutrient granules. Thus, thermoplastic starch has been used as a biodegradable matrix binder mixed with the fertilizers in a continuous process by extrusion. Urea and KCl were considered as N and K sources, respectively. P sources with different solubilities (triple superphosphate (TSP) and Bayovar and Patos phosphate rocks) have been tested and compared. The greenhouse experiment revealed that the TSP composite promoted superior biomass production than the standard application, in addition to an overall better nutrient uptake. While Bayovar did not benefit from the all-in-one granule, Patos results were improved in this system, revealing a boost in its solubilization. (AU)

FAPESP's process: 18/10104-1 - Nanocomposites Preparation from Urea modified with Glycerol for optimization of Process of Controlled Release of Nutrients
Grantee:Amanda Soares Giroto
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/11821-5 - Study of Nanosize Phosphate Solubilization Dispersed in Matrices of Different Solubilities
Grantee:Amanda Soares Giroto
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 16/10636-8 - From the cell factory to the Biodiesel-Bioethanol integrated biorefinery: a systems approach applied to complex problems in micro and macroscales
Grantee:Roberto de Campos Giordano
Support type: Program for Research on Bioenergy (BIOEN) - Thematic Grants
Grantee:Gelton Geraldo Fernandes Guimarães
Support type: Scholarships in Brazil - Post-Doctorate